Problem Solver - Building Boards
Other Problems
Building boards or sheet materials are often used in construction they come in several types some cane be fire protection and others moisture resistant others can be cement bonded for specialist boards refer to manufactures recommendations
Preparation
Ensure surface is sound dry and clean
If any mould or mildew is apparent, treat with a suitable fungicidal solution, rinse again with clean water and allow to dry.
Make good any defective areas to match existing
Basecoat
Once the surface is clean and all loose material has been removed, treat with a suitable primer and allow to dry.
Topcoat
Apply an appropriate topcoat and allow to dry, followed by a 2nd coat to finish.